package com.example.yangluning.menudialottest221;

import android.content.DialogInterface;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.widget.EditText;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {
private TextView tvinfo,tvmenu;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        init();
    }
private void init(){
    tvinfo= (TextView)findViewById(R.id.textView);
    tvmenu=(TextView)findViewById(R.id.textView2);
}
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        MenuInflater inflater=getMenuInflater();
        inflater.inflate(R.menu.main,menu);
        return true;
    }
//创建选项菜单和子菜单
    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId())
        {
            case R.id.menu1:tvinfo.setText("菜单1");
                showdialog();//创建并显示对话框
                break;
            case R.id.menu2:tvinfo.setText("菜单2");
                break;
            case R.id.menu3:tvinfo.setText("菜单3");
                break;
            case R.id.menu4:tvinfo.setText("菜单4");
                break;
            case R.id.menu5:tvinfo.setText("菜单5");
                break;
            case R.id.menu6:tvinfo.setText("菜单6");
                break;
        }
        return super.onOptionsItemSelected(item);
    }    //相应选项菜单和子菜单点击事件

    private void showdialog() {
        //动态加载布局
        final View view=getLayoutInflater().inflate(R.layout.dialoglayout,null);
        AlertDialog dialog=new AlertDialog.Builder(this)//---1
                .setTitle("对话框标题")//---2
        .setIcon(R.mipmap.ic_launcher)//---3
        .setView(view)//--4自定义布局
        .setPositiveButton("确定", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialogInterface, int i) {
                //点击确定按钮要做的事情
                EditText et=(EditText)view.findViewById(R.id.editText);
                String str=et.getText().toString();
                tvinfo.setText(str);
            }
        })
                .setNegativeButton("取消", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialogInterface, int i) {
                        //点击取消按钮的操作

                    }
                })
                .create();//----5按钮操作，创建
        dialog.show();//----6显示
    }

}
